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#!/bin/bash
if [ $# -le 1 ]; then
echo "num $#"
echo ""
echo "devcount-dmsetup save <dev>"
echo ""
echo "devcount-dmsetup error <dev>"
echo ""
echo "devcount-dmsetup linear <dev>"
echo ""
fi
cmd=$1
dev=$2
if [ "$cmd" == "save" ]; then
rm -f /tmp/table-linear.txt
rm -f /tmp/table-error.txt
dmsetup table $dev > /tmp/table-linear.txt
sed "s/linear/error/" /tmp/table-linear.txt > /tmp/table-error.txt
exit 0
fi
dmsetup suspend $dev
dmsetup load $dev /tmp/table-$cmd.txt
dmsetup resume $dev
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